Garden & Granny Annexes
Keep family close, keep everyone independent.
A fully self-contained annexe — bedroom, kitchen and bathroom — in your garden. No planning permission under the Caravan Act, no house extension, no months of disruption.
- 25 Year
- Guarantee
- Free
- UK Delivery
- Zero
- Maintenance
The Range
The Squire, Rockingham, Diamond & Lincoln
Four named layouts, plus a made-to-width range. The Squire is our compact entry annexe; the Rockingham and Diamond step up in width for more living space; the Lincoln is our L-shape for tighter plots; and the Straight is built to your exact width, from 16ft to 32ft.
Every annexe is a self-contained dwelling — double bedroom, fitted kitchen and full bathroom — insulated for year-round living and finished in the same zero-maintenance composite cladding, backed by our 25-year structural guarantee.
At a glance
Everything an annexe gives you
- ✓ No planning permission — Caravan Act, Section 13(2)
- ✓ VAT included in the price
- ✓ Self-contained: double bedroom, kitchen & bathroom
- ✓ Delivered in weeks, not months — no scaffolding
- ✓ Free delivery and installation in mainland England
- ✓ £1,000 deposit reserves your installation date
Our Annexe Range
Choose a model — or build your size
Each is a complete home — bedroom, fitted kitchen and bathroom. Prices include VAT, free delivery and full installation in mainland England, and our 25-year structural guarantee.
The Lincoln (L-Shape)
24ft × 8ft + 12ft × 8ft
Inc. VAT, delivery & installation
Self-contained — fitted kitchen & bathroom.
See full details
The Squire
16ft × 17ft (4.9m × 5.2m)
Inc. VAT, delivery & installation
Self-contained — fitted kitchen & bathroom.
See full details
The Rockingham
20ft × 17ft (6.1m × 5.2m)
Inc. VAT, delivery & installation
Self-contained — fitted kitchen & bathroom.
See full details
The Diamond
24ft × 17ft (7.32m × 5.19m)
Inc. VAT, delivery & installation
Self-contained — fitted kitchen & bathroom.
See full details
The Straight
16ft–32ft wide × 8ft deep
Inc. VAT, delivery & installation
Self-contained — fitted kitchen & bathroom.
See full detailsEvery annexe includes
- ✓ Full kitchen & bathroom
- ✓ Insulated for year-round living
- ✓ No planning permission required (Caravan Act)
- ✓ 25-year structural guarantee included
Prices are provisional pending final sign-off. View all sizes & rental options →
Why an Annexe
A genuine home, without the build
No planning permission
Supplied to comply with Section 13(2) of the Caravan Sites Act 1968. For a family member, in a correctly positioned annexe, no planning application is needed.
VAT included
Every price includes VAT, delivery and installation — the figure you see is the figure you pay.
Weeks, not months
No scaffolding and no structural work to the main house. Delivered and installed with minimal disruption to your home and garden.
Not ready to buy? You can rent an annexe from ~£795/month — the same independence without the capital outlay.
Rent an annexeEvery annexe includes a fitted kitchen as standard — see the full kitchen walkthrough →
And, like every Booths building
A zero-maintenance exterior
Built from steel, UPVC and composite — no external timber. It never needs painting or staining, so you are never left maintaining a building, and it keeps its just-installed look for the full 25 years.
The UK’s only 25-year guarantee
A 25-year structural guarantee on the building itself — not a one or two-year warranty. It is built, and warranted, to be used for decades rather than treated as a temporary garden room.
Portable — and still an asset
Every building is 100% portable. If your circumstances change it can be lifted out and relocated, or sold on, so it stays a resaleable asset rather than money sunk irreversibly into the house.
Customer Stories
Garden annexes in the wild
Annexe & planning questions
Can I attach my annexe to my house?
No — annexes cannot attach to existing properties, but can be positioned within about 2 inches of the home or garage.
How do I buy a garden annexe?
A £1,000 deposit reserves your installation date; you pay nothing more until the groundworks team arrives. Designers email floor plans and conduct a site visit to finalise the design, which must be confirmed 15 working days before installation.
What height is my garden annexe?
All annexes are 2,500mm tall, which falls within permitted development for garden structures.
What is included in the annexe price?
Groundworks (up to 20m), electrical connections, air-conditioning heating/ cooling, flooring, blinds and exterior lights — plus the 25-year guarantee.
Is my garden annexe insulated?
Yes — 90mm Ecotherm flooring and 90mm Actis wall/ceiling insulation. As an annexe faces weather on six sides, robust insulation is essential.
Listed building or AONB — can I still have an annexe?
Contact your council and emphasise the low carbon output — some planners have approved installations. Material samples are available on request.
Will I need planning permission for my annexe?
Annexes for a family member comply with the Caravan Act and qualify as permitted development, avoiding planning permission. See the Planning Permission page for the full conditions.
What are your most popular annexe sizes?
The Squire (16'x17'), Rockingham (20'x17') and Lincoln L-shape (24'x8' / 12'x8'). For smaller gardens, 20'x8' or 24'x8' with kitchen and bathroom are favoured.
If I move home, can I take my garden annexe with me?
Yes — portability is a core design principle. Even large annexes with kitchens and bathrooms remain portable, provided Booths installed those fixtures.
Can I attach a studio or annexe to my house?
No — studios, offices and annexes cannot be attached to existing properties, though they can be positioned within about 2 inches of one.
Do I need a concrete base?
No. Studios sit on an adjustable chassis on concrete feet resting on soil, grass or gravel — significant cost savings, installable on sloped ground, and a lower-carbon alternative to a concrete base.
Do I need planning permission for decking?
Yes if the decking is 300mm or more above ground; no if below 300mm.
I live in a Grade 2 listed building and/or an AONB — is this an issue?
It can be a sticking point, but customers emphasising the low carbon output have gained approval. Contact your council first; describe the three materials (A-grade UPVC windows, plasti-coated galvanised steel walls, corrugated bitumen roof). We provide samples and elevation drawings to help.
Do I need garden office planning permission?
Probably not — the 2.5m height qualifies as permitted development. If you handle planning yourself we supply drawings free of charge, and a planning consultant is available. Caravan-Act annexes need no planning permission.
I have a severely sloped garden — can you still install a garden studio?
Yes. Installation is possible on a severe slope without a concrete base; a studio skirt is available if desired, or you can plant beneath. Foxes living underneath is extremely rare — zero instances in company history.
What height is the garden studio?
All studios are 2,500mm high, which typically requires no planning permission as it falls within permitted development, even with a flyover roof. An extended-height option adds roughly 300mm of interior height.
Talk to us about your family's annexe
We'll advise on planning, sizes and the Caravan Act conditions for your specific garden — and we'll do our best to come back to you the same working day.
Prefer to talk?
07746 665560Want to speak to someone straight away? We pride ourselves on quick, friendly replies — contact us now →